Machine for making pies.



D. K. ALLISON.

MACHINE FOR MAKING PIES.

APPLICATION FILED APR.1, 1909.

Patentd Jan. 11, 1910.

4 SHEETS-SHEET 1.

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Patented Jan. 11,1910.

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D. K. ALLISON. MACHINE FOR MAKING PIES. APPLIOATIONFILIIDAPRJ,1909.

Patented Jan. 11,1910.

4 SHEETS-SHEET 4.

IIIIIIIIIIIIIII .WlTNESSES UNITED STATES PATENT OFFICE.

DANIEL K. ALLISON, OF NORWOOD, OHIO, ASSIGNOR TO THE 3'. H. DAY COMPANY,OF CINCINNATI, OHIO.

MACHINE FOR MAKING PIES.

To all whom 'it may concern:

Be it known that I, DANIEL K. ALLISON, a citizen of the United States,residing at Norwood, in the county of Hamilton and State of Ohio, haveinvented certain new and useful Improvements in Machines for MakingPics, of which the following is a specification.

My invention relates to that class of machines in which an endlesscarrier is provided, upon which the pics are made While being conveyedthrough the machine and the main object of my invention is to provide amachine in which the pies are made in plates placed upon traveling cups,so that the pie plate may be started at one end of the machine andduring its course of travel the bottom dough may be first placed on and,without interruption to the travel, the pies are automatically filledwith fruit or other filling materials, and after the top dough is placedon, the pies are automatically trimmed of their surplus dough and sealedaround their peripheries to prevent leakage; and finally the pics areautomatically transferred to a conveyer on which they may be transportedto any desired distance, preferably to a point within easy access of theoven.

The nature of my improvements will be more clearly understood byreference to the accompanying drawings, in which Figures 1 and 2 arecontinued views in elevation of my machine; Figs. 3 and 4c are alsocontinued plan views of'the parts shown in Figs. 1 and 2 respectively;Fig. 5 is an enlarged transverse section of the machine taken on theline AA of Fig. 4; Fig. 6 is a rear elevation of part of the mechanismshown in Fig. 5; Fig. 7 is a partial plan view of a cup 13 showing theconstruction of the scraper Fig. 8 is a plan View of the plate lifter21; Fig. 9 is an elevation of the plate lifter 21; Fig. 10 is a detailin perspective of the yielding bar 57; F i 11 is a plan view of thereservoir 23 and the feeding mechanism cotiperating therewith; Fig. 12is a partial vertical section through the reservoir 23; Fig. 13 is asection through the pocket 24 showing a means of reducing the capacityof said pocket; Fig. 14 is a de tail of the lever valve 37; Fig. 15 is avertical section through the center of the circular plate 35.

I have chosen to mount my machine on a Specification of Letters Patent.

Application filed April 1, 1909.

Patented Jan. 11, 1910.

Serial No. 487,303.

frame composed of side rails 1, legs 2 and cross ties 3 of any suitablematerial and put together in any suitable manner. Mounted in suitablejournal boxes 4- 1 is the transverse shaft 5 on which are mounted thetight and loose pulleys 6 and 7 to which the power is applied. Thesprocket wheels 8 and 9 also mounted on shaft 5 carry the chains 1010which are supported at the opposite end of the machine by the sprocketwheels 1111 mounted on shaft 12. The chains 10l0 carry a number of cupsdesignated by 13-13 which are equally spaced and which are securelyfastened to the said chains. The con struction of these cupsis shown inFig. 5 in which 1414 represent sections of the chains 1010 with upturneddogs 1515. To these dogs is secured the cross bar 16. Secured to thiscross bar 16 is the vertical stud 17 upon which is rotatably mounted theand down thereon is the plate lifter 21 provided with the pins 2222which penetrate the bottom of said cups. Extending rearwardly from thecross bar 16 is the arm 63 supporting the upright bar 6 1 to which isattached the scraper 65. This scraper is used to scrape the downwardlyextending flange or rim 66 of the cup 13. Details of this plate lifterare shown in Figs. 8 and 9. The reservoir 23 in which the fruit or piefilling materials are placed, is shown in Figs. 1 and 3 and the enlargedviews of Figs. 11 and 12. This reservoir is rigidly mounted on one sideof the machine and above the cups 13 as shown in Figs. 1 and 3 and isprovided with the pocket 2-1 in the bottom. Extending downwardly throughthe center of said reservoir is the vertical shaft 25 which revolves theplate 26 located in the bottom of said reservoir. The shaft 25 receivesits movement from the driving shaft 5 through the bevel gear 27 mountedon shaft 28 and its companion gear 29 mounted on shaft 25, the sprocketWheels 30 and 31 and chain 32, and the spur gears 33 and 3 1, butit maybe driven in any suitable manner. Beneath the reservoir 23 andcooperating therewith is the circular plate 35 mounted upon the verticalshaft 42 by which it is rotated, this shaft, in turn, re-

ceiving its movement from shaft 25 through the sprocket wheels 43 and 4Aand chain 45. or by any other suitable means. This plate has a series ofpockets 3636 projecting beneath the same. These pockets 36-36 areprovided with lever valves3737 which when closed form bottoms for thesaid pockets. The lever valves are fitted closely to the bottoms of thesaid pockets, being held by the screws 3838 which also form pivots uponwhich the valve levers may be oscillated to open and close the saidpockets 3636 as will be more fully explained hereinafter. To one end ofthe valve levers are attached the springs 49-49 which serve to keep thesaid valve levers closed as shown in Fig. 11, the studs 404.0 serving asstops to limit the movement of said valve levers. These valve levers arealso provided with extensions 4tletl used to trip the valves open in theoperation of the machine, which operation will also be explainedhereinafter. On one end of the shaft 12 the sprocket wheel 46 ismounted, driving the chain a7 which in turn drives sprocket wheel 48mounted on the shaft as shown in Figs. 5, 4, and 2. On the same shaft isthe bevel gear 50 driving the bevel gear 51, which in turn drives theshaft 52 and the pulley 53 mounted thereon. Shaft 52 is journaled in thebracket 5%. The pulley 55 is similar to pulley 53 and over these twopulleys the endless belt 56 travels. Opposite the belt 56 and parallelthereto is the yielding bar 57 which is held by the studs 606O mountedin the brackets 58 and 59. The compression springs 6161 enable the bar57 to yield when excessive pressure is exerted against its surface. Thisyielding bar has a number of knives 62-62 secured to its surface asshown in Fig. 10, the function of which will be explained hereinafter.The endless belt 67 mounted upon the rollers 68 and 69 rotatably mountedin suitable journal boxes secured to the frame work of the machine, asshown in Figs. 2 and 4, is driven from the shaft 12 by the sprocketwheels 70 and 71 and the chain 72, the shaft 73, the gears 74: and 75.The angle irons 76-76 are secured to this belt and travel with it. Theroller 77 is mounted upon the shaft 73 and carries the endless belt orapron 78 which is supported at the end of the machine by the roller 79.This belt or apron may be any length desirable, as the finished pies arecarried upon this belt to a point within easy access of the oven, or toany point desirable.

The operation of this machine is as follows: Power is applied to thepulley 6 which causes the chains 10-10 to travel in the directionindicated by the arrows, carrying with them the cups 1313. Pie platesare placed upon these cups which are made to fit said pie plates. Thebottom layer of dough is placed upon the pie plates by hand and as thesepie plates pass beneath the circular plate 35 they are automaticallyfilled with fruit or other pie filling materials, the operation of whichis as follows: The fruit or other pie filling materials are placed inthe reservoir 23 and as the plate 26 rotates the pocket 21 is filledwith the material, the top surface of the circular plate 35 forming abottom for the said pocket. At certain points in the revolution of thecircular plate 35 its pockets 36 36 will come into vertical alinementwith the said pocket 24: and the material will drop into the said pocket36 and, while these two pockets are in vertical alinement, the plate 26will cover the said pocket 24: and prevent materials from feeding intoit. It will be noticed that this feeding process is accomplished byalternately opening the said pocket 24, first atthe top for fillingpurposes, and then at the bottom for emptying. As the plate 35 revolvesits pocket 36, now filled with pie filling materials, travels in thepath of a moving pie plate and empties its contents into the pie platebeneath. plished by the extension ll of the valve lever 37, beingarrested in its movement with the said circular plate 35 by the trippinghook 80, mounted on the frame 1 shown in Figs. 3 and 11.. Now as thecircular plate continues to revolve the arresting of the said valvelever causes it to rotate upon the screw 38 sufficiently to completelyuncover the bottom of said pocket 36, which action causes the contentsof said pocket to empty into the pie plate beneath. As soon as the saidvalve lever passes beyond the said tripping hook 80 the valve lever willclose by the action of the spring 39, as shown in Fig. 11. In Fig. 11 Ihave shown a pie plate at 81 with the bottom dough in it ready to befilled and at 82 a pie plate after it has been filled. In the same ViewI have shown one of the pockets 36 as it looks when filled with piefilling material. In Fig. 3 I have shown the valve lever 37 wide openwith the filling material in the pie plate beneath. The pics are nowcovered with the top dough by hand and appear as shown at 83 in Figs. 1and 3. They now pass through the trimming device where they are trimmedof their surplus dough and the top and bottom doughs are pressedtogether or sealed to prevent leakage. Also during this process thesurplus dough or scrap would ordinarily drop in a continuous ring andwrap around the lower part of the cup and be carried by it in itscircuit through the machine and thus be wasted, so I have devised meansfor cutting this scrap dough into short pieces so that it will drop uponthe continuous apron 84 (shown in Fig. 5) and be carried by said apronto the end of the machine where it may be dropped into any suitablevessel.

This is accom- Fig. 5 and the belt 56 engages the periphery of the pieplate, being supported against sagging by the rigid bar 89 shown by thedotted lines in Fig. 5, and by means thereof exerts a pressure againstthe yielding bar 57. It is desirable to have the said pie plates rollalong the surface of said yielding bar 57, so that in said rollingprocess the pressure exerted against said bar will cause the surplusdough to be pressed or cut off and the same to fall upon the apron 84;below. Now as the said pie plates are already traveling at a certainvelocity, imparted by the chains 1010, it will be necessary for the saidbelt 56 to travel at a velocity greater than that of the said pie platesin order to cause the said pie plates to roll along the surface of saidyielding bar, and I have chosen to impart a velocity to said belt 56which shall be double that of the said pie plates and at this Velocitysaid belt will cause said pie plates to roll along the surface of saidyielding bar without slipping and thereby cut the surplus dough from thepie plates without disfiguring the pie. After the pie plate has made onerotation the pie is completely trimmed of its surplus dough. The ressureexerted upon the dough by the belt and the yielding bar presses the twolayers of dough together and completely seals it and thereby preventsleakage. The surplus dough is cut by the knives 62-62 as the cups rollalong the surface of the yielding bar. This is caused by the flange 66rolling over the cutting edges of the knives 62 and the surplus dough issqueezed between the two and cut into fragments, after which thesefragments are kept from adhering to the said flange 66 by the scraper 65which throws them off and they drop on the apron 84 as before described.The action of the scraper 65 upon the surplus dough is illustrated inFig. 6. After the pie has passed beyond the trimming device the platelifter 21 is elevated by its circular extension 86 riding upon thetapered track 87. This serves to lift the pie plate above the,cup 13, asseen in Fig. 2, and at this juncture the angle iron 76, carried by theendless belt 67, pushes the pie plate onto the stationary plate 88 andcarries it along and finally delivers it onto the apron 78. In order toperform its function properly it is necessary that the belt 67 shouldtravel at a higher velocity than that of the cups.

Having now described my invention, what 1 I claim and desire to secureby Letters Patent is:

1. In a machine for making pies, the combination with means forconveying the pies in succession through the machine, and means forautomatically filling the pies, of means for automatically trimming thepies of their surplus dough, together with means for automaticallycutting the said surplus dough or scrap into pieces so that the same maybe collected without the use of manual means.

2. A pie trimming device comprising a yielding bar and a belt runningparallel therewith, said belt being arranged to roll a pie plate alongthe surface of said bar and exert pressure at the point of contactbetween the said pie plate and said bar, and means for driving saidbelt, and means for preventing said belt from yielding under saidpressure.

3. A pie trimming device comprising an endless carrier having a seriesof cups for holding and conveying pie plates, a yielding bar mountedparallel with the line of travel of said endless carrier, an endlessmoving belt arranged to engage the peripheries of said pie plates andcause the same to roll along the surface of said yielding bar, and meansfor driving said belt at a velocity. approximately double that of thesaid endless carrier.

4:. In a machine for making pies the combination with means for feedingpies in succession through the machine and means for trimming said piesof their surplus dough during their travel, of a plurality of knivesarranged to cut the said surplus dough and an endless apron below saidknives arranged to catch said surplus dough and carry it to a point ofdelivery.

DANIEL K. ALLISON.

Witnesses

